sh: Integrate the SH-5 onchip_remap() more coherently.

Presently this is special-cased for early initialization. While there are
situations where these static early initializations are still necessary,
with minor changes it is possible to use this for the regular ioremap
implementation as well. This allows us to kill off the special-casing for
the remap completely and to start tidying up all of the SH-5
special-casing in drivers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

6 files changed, 57 insertions, 8 deletions

diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
index d8679a4d93a4..02d8137547e8 100644
--- a/arch/sh/kernel/cpu/irq/intc-sh5.c
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -188,7 +188,7 @@ void __init plat_irq_setup(void)
         unsigned long reg;
         int i;
 
-        intc_virt = onchip_remap(INTC_BASE, 1024, "INTC");
+        intc_virt = (unsigned long)ioremap_nocache(INTC_BASE, 1024);
         if (!intc_virt) {
                 panic("Unable to remap INTC\n");
         }
diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
index ce4602ea23a8..a184a31e686e 100644
--- a/arch/sh/kernel/cpu/sh5/Makefile
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -6,6 +6,9 @@ obj-y := entry.o probe.o switchto.o
 obj-$(CONFIG_SH_FPU)            += fpu.o
 obj-$(CONFIG_KALLSYMS)          += unwind.o
 
+# CPU subtype setup
+obj-$(CONFIG_CPU_SH5)           += setup-sh5.o
+
 # Primary on-chip clocks (common)
 clock-$(CONFIG_CPU_SH5)         := clock-sh5.o
 
diff --git a/arch/sh/kernel/cpu/sh5/clock-sh5.c b/arch/sh/kernel/cpu/sh5/clock-sh5.c
index 52c49248833a..5486324880e1 100644
--- a/arch/sh/kernel/cpu/sh5/clock-sh5.c
+++ b/arch/sh/kernel/cpu/sh5/clock-sh5.c
@@ -71,7 +71,7 @@ static struct clk_ops *sh5_clk_ops[] = {
 
 void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
 {
-        cprc_base = onchip_remap(CPRC_BASE, 1024, "CPRC");
+        cprc_base = (unsigned long)ioremap_nocache(CPRC_BASE, 1024);
         BUG_ON(!cprc_base);
 
         if (idx < ARRAY_SIZE(sh5_clk_ops))
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index 7e49cb812f8b..516297515b25 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -1410,8 +1410,8 @@ peek_real_address_q:
            r2(out) : result quadword
 
            This is provided as a cheapskate way of manipulating device
-           registers for debugging (to avoid the need to onchip_remap the debug
-           module, and to avoid the need to onchip_remap the watchpoint
+           registers for debugging (to avoid the need to ioremap the debug
+           module, and to avoid the need to ioremap the watchpoint
            controller in a way that identity maps sufficient bits to avoid the
            SH5-101 cut2 silicon defect).
 
@@ -1459,8 +1459,8 @@ poke_real_address_q:
            r3 : quadword value to write.
 
            This is provided as a cheapskate way of manipulating device
-           registers for debugging (to avoid the need to onchip_remap the debug
-           module, and to avoid the need to onchip_remap the watchpoint
+           registers for debugging (to avoid the need to ioremap the debug
+           module, and to avoid the need to ioremap the watchpoint
            controller in a way that identity maps sufficient bits to avoid the
            SH5-101 cut2 silicon defect).
 
diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5.c b/arch/sh/kernel/cpu/sh5/setup-sh5.c
new file mode 100644
index 000000000000..d8d59fea1082
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh5/setup-sh5.c
@@ -0,0 +1,46 @@
+/*
+ * SH5-101/SH5-103 CPU Setup
+ *
+ *  Copyright (C) 2009  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <linux/serial_sci.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <asm/addrspace.h>
+
+static struct plat_sci_port sci_platform_data[] = {
+        {
+                .mapbase        = PHYS_PERIPHERAL_BLOCK + 0x01030000,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
+                .type           = PORT_SCIF,
+                .irqs           = { 39, 40, 42, 0 },
+        }, {
+                .flags = 0,
+        }
+};
+
+static struct platform_device sci_device = {
+        .name           = "sh-sci",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = sci_platform_data,
+        },
+};
+
+static struct platform_device *sh5_devices[] __initdata = {
+        &sci_device,
+};
+
+static int __init sh5_devices_setup(void)
+{
+        return platform_add_devices(sh5_devices,
+                                    ARRAY_SIZE(sh5_devices));
+}
+__initcall(sh5_devices_setup);
diff --git a/arch/sh/kernel/time_64.c b/arch/sh/kernel/time_64.c
index f4f5e8ad5bec..7bfeaa09b947 100644
--- a/arch/sh/kernel/time_64.c
+++ b/arch/sh/kernel/time_64.c
@@ -243,12 +243,12 @@ void __init time_init(void)
         unsigned long interval;
         struct clk *clk;
 
-        tmu_base = onchip_remap(TMU_BASE, 1024, "TMU");
+        tmu_base = (unsigned long)ioremap_nocache(TMU_BASE, 1024);
         if (!tmu_base) {
                 panic("Unable to remap TMU\n");
         }
 
-        rtc_base = onchip_remap(RTC_BASE, 1024, "RTC");
+        rtc_base = (unsigned long)ioremap_nocache(RTC_BASE, 1024);
         if (!rtc_base) {
                 panic("Unable to remap RTC\n");
         }